> Look at it this way: if it really had the long lasting effects that the ads wants you to believe it has, then it would be a medicine and wouldn’t be sold OTC.

> Look at it this way: if it really had the long lasting effects that the ads wants you to believe it has, then it would be a medicine and wouldn’t be sold OTC. I think this is a little simplistic. The FDA isn't inherently interested in anything effective being deemed a drug, even when it comes to oral supplementation. Plenty of non-medicine, non-FDA-regulated substances that work like medicines in some situations and do have real, repeatable effects are sold OTC. Plenty of actual medicines that are FDA-regulated are sold OTC.